Desiccating apparatus



(No Model.) 2 Sheets-Sheet 1.

A'. FAIRGHILD. l

DESIGGATING APPARATUS. No. 301,701. Patented July 8, 3.884.

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A. PMMHILD.v DEsm-GATING APPARATUS. No. 301701. Patented July 8, 1884.

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UNITED SrATns- ATENT OFFICEQ ABRAM FA'IRCHILD, OF SYRACSE, NEV YORK.

oEsiooATlNe APPARATUS SPECIFICATION forming part of Letters 'Patent No. 301,701, dated July 8, 1884.

` Application filed August 10, 1883. (No model.) y

To all wfwm, timmy concern:

` Beit known that I, 'Annan FAIRCHILD, of, Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in lDesiccating Apparatus, of which the following, taken in connec-e` tion with the accompanying drawings, is a full, clear, and exact description.

This invention relates to an improved apparatus specially designed for drying salt; and it consists in a novel construction and combination ci' a series of endless chains arranged in different horizontal planes, and car-l rying metal pans having upturned end and side edges, and a case inclosing saididevices, and provided with removable panels to afford ready access to said pans and their carrying chains for cleaning, repairing, or renewing the saine, as may become necessary,'all as hereinafter more fully described, and specifically set forth in the claims.

In the annexed drawings, Figure lis a side elevation of any improved 'desiccating apparatus, with portions of the side panels of the case removed to illustrate the interior arrangenient ci' the saine. Fig. 2 is a vertical transverse section of the saine. Fig. 3 is an end view of the desiccator and the heating apparates connected therewith, and Fig. 4 is a decached view of one of the removable panels of the desiccating-chamber.

Similar letters of reference indicate correspending parte.

Arepresents an erect' rectangular case made' its end with agear-wheel, d, meshing in that of lthe adjacent shaft, so that all the shafts a c are caused to rotate synchronously and successively inV opposite directions, one of the shafts being provided with a driving-pulley, P, which is connected with the motor by belt or otherwise.

To the endless chains c care attached transversely narrow pans c e, formed preferably of copper ce: other metal adapted for the treatment of salt, said pans having both their end and side edges turned up to enable the pans to contain a thin stratum of salt, the turned up side edges also serving to stiften the pans and enable them to better sustain their weight and contents between the two chains c c.

An inlet, I, for the substance to be treated, is applied to the top of the case A, and an outlet, C, for the desiccated substance, is provided at thek bottoni of the case. As the aforesaid substance enters the case A through the inlet l, it falls into the pans e e of the upper endless carrier, which carries it along to the end oi' the case, where the travel oi' the endless chains around the sprocket-wheels b b tilts the pans and causes the substance under treatment to fall into the pans of the subjacent set of carriers. The latter,traveling in the opposite direction from the upper carriers, carries the aforesaid substance to the opposite end of the case, where it is again thrown into the pans of the next subjacent set of carriers, and in this manner the substance proceeds from end to end of the case alternately. inopposite directions, dropping successively from carrier to carrier,and finally into the outlet C ofthe case. I ing the substance from one carrier to the other said substance becomes thoroughly stirred and inverted, so that the portion which was at the top of the layer of substance on one carrier comes to the bottom ofthe layer formed on the succeeding carrier, thereby bringing every particle of the substance in direct contact with the heated pans for a sudicient period to expel the moisture therefrom. In order to insure a proper conveyance oi' the substance It will be observed that by dumpfrom carrier to carrier, l secure to the ends of g IOC .the aforesaid carriers ifor heating the same; but the requisite heat for desiccating the substance under treatment I obtain chiefly by means of. one or more hot-air furnaces, F, the

hot-air ducts D of which are extended to and communicate with the base of the interior of the case A. A vent, E, is applied to the top of the case for the escape of the vapor ex,- pelled from the substance carried through the case by the endless carriers before described.

In order to accelerate the currents of hot` air and vapor, and thus promote the desiocating process, I connect to the ventiduct E a suction-fan or the receiving-porter a blower, B, and extend the discharge-pipe thereof to the air-heating space or chamber of the furnace, as illustrated in Fig. 3 of the drawings.

The sides of the caseA, I construct with removable panels un, so as to obtain ready access to the respective carriers inside of the case when necessary.

' I am aware that it is not new to arrange in a drying-chamber endless aprons andendless chains carried by revolving cylinders, drums, or wheels, and provided with pans or other 'suitable receptacles for the substance to be dried, and I therefore do not claim such an apparatus, broadly; but

What I do claim as new, and desire to secure by Letters Patent, is- 3o l. In combination with the series of travlcling endless carriers arranged in different horizontal planes, the inclosingcase provided vwith removable panels at their respective can In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Syracuse, in the 4 5 county of Onondaga, in the State of N ew York, this 8th day of August, 1883.

ABRAM FAIRGHILD. [ns1 Witnesses:

FREDERICK H. GIBBs, WM. C. RAYMOND. 

